There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

A man dies of old age on his 25 birthday. How is this possible?

What will you call your mother's brother's brother-in-law?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not-rounded numerals equals 24.

What is common among 11, 69, and 88?

Solve the mathematical equation in the picture below.

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

What part of the chicken has the most feathers?

Our product and our sum always give the same answer. Who are we?